If animals could talk they'd say Jeffers.
ShieldTec Flea & Tick Collar for Dogs
ShieldTec Flea & Tick Collar kills fleas and ticks on dogs for up to 6 months, including brown ticks, American ticks, and deer ticks. 4% Deltamethrin for powerful control. Do not use on cats! Waterproof and convenient cut to fit for one size fits all dogs.
Safe for dogs 12 weeks and older.
California Prop 65 WARNING
Cancer and Reproductive Harm - www.p65warnings.ca.gov